mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-29 07:42:23 -05:00
419630e0be
* gnu/packages/patches/wpa-supplicant-CVE-2015-5310.patch, gnu/packages/patches/wpa-supplicant-CVE-2015-5314.patch, gnu/packages/patches/wpa-supplicant-CVE-2015-5315.patch, gnu/packages/patches/wpa-supplicant-CVE-2015-5316.patch: New files. * gnu-system.am (dist_patch_DATA): Add them. * gnu/packages/admin.scm (wpa-supplicant-minimal)[source]: Add patches.
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
From 95577884ca4fa76be91344ff7a8d5d1e6dc3da61 Mon Sep 17 00:00:00 2001
|
|
From: Jouni Malinen <j@w1.fi>
|
|
Date: Sun, 1 Nov 2015 19:35:44 +0200
|
|
Subject: [PATCH] EAP-pwd peer: Fix error path for unexpected Confirm message
|
|
|
|
If the Confirm message is received from the server before the Identity
|
|
exchange has been completed, the group has not yet been determined and
|
|
data->grp is NULL. The error path in eap_pwd_perform_confirm_exchange()
|
|
did not take this corner case into account and could end up
|
|
dereferencing a NULL pointer and terminating the process if invalid
|
|
message sequence is received. (CVE-2015-5316)
|
|
|
|
Signed-off-by: Jouni Malinen <j@w1.fi>
|
|
---
|
|
src/eap_peer/eap_pwd.c | 3 ++-
|
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/src/eap_peer/eap_pwd.c b/src/eap_peer/eap_pwd.c
|
|
index 75ceef1..892b590 100644
|
|
--- a/src/eap_peer/eap_pwd.c
|
|
+++ b/src/eap_peer/eap_pwd.c
|
|
@@ -774,7 +774,8 @@ eap_pwd_perform_confirm_exchange(struct eap_sm *sm, struct eap_pwd_data *data,
|
|
wpabuf_put_data(data->outbuf, conf, SHA256_MAC_LEN);
|
|
|
|
fin:
|
|
- bin_clear_free(cruft, BN_num_bytes(data->grp->prime));
|
|
+ if (data->grp)
|
|
+ bin_clear_free(cruft, BN_num_bytes(data->grp->prime));
|
|
BN_clear_free(x);
|
|
BN_clear_free(y);
|
|
if (data->outbuf == NULL) {
|
|
--
|
|
1.9.1
|
|
|